2545923159 has 48 divisors (see below), whose sum is σ = 4024107360. Its totient is φ = 1541652480.

The previous prime is 2545923139. The next prime is 2545923169. The reversal of 2545923159 is 9513295452.

2545923159 is a `hidden beast` number, since 2 + 5 + 4 + 592 + 3 + 1 + 59 = 666.

It is not a de Polignac number, because 2545923159 - 2⁸ = 2545922903 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545923139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3971479 + ... + 3972119.

It is an arithmetic number, because the mean of its divisors is an integer number (83835570).

Almost surely, 2^2545923159 is an apocalyptic number.

2545923159 is a deficient number, since it is larger than the sum of its proper divisors (1478184201).

2545923159 is a wasteful number, since it uses less digits than its factorization.

With its successor (2545923160) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1149).

With its successor (2545923160) it forms an eRAP, since the sums of their prime factors are consecutive (1152 and 1153).

2545923159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152 (or 1149 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 2545923159 is about 50457.1418037130. The cubic root of 2545923159 is about 1365.4687453447.

The spelling of 2545923159 in words is "two billion, five hundred forty-five million, nine hundred twenty-three thousand, one hundred fifty-nine".